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Smart Structures and Systems
  Volume 15, Number 6, June 2015 , pages 1411-1437
DOI: https://doi.org/10.12989/sss.2015.15.6.1411
 


Electromagnetothermoelastic behavior of a rotating imperfect hybrid functionally graded hollow cylinder
M. Saadatfar and M. Aghaie-Khafri

 
Abstract
    The electro-magneto- thermo-elastic behavior of a rotating functionally graded long hollow cylinder with functionally graded piezoelectric (FGPM) layers is analytically analyzed. The layers are imperfectly bonded to its inner and outer surfaces. The hybrid cylinder is placed in a constant magnetic field subjected to a thermo-electro-mechanical loading and could be rested on a Winkler-type elastic foundation. The material properties of the FGM cylinder and radially polarized FGPM layers are assumed to be graded in the radial direction according to the power law. The hybrid cylinder is rotating about its axis at a constant angular velocity. The governing equations are solved analytically and then stresses, displacement and electric potential distribution are calculated. Numerical examples are given to illustrate the effects of material in-homogeneity, magnetic field, elastic foundation, applied voltage, imperfect interface and thermo-mechanical boundary condition on the static behavior of a FG smart cylinder.
 
Key Words
    functionally graded piezoelectric (FGPM); functionally graded material (FGM); magnetic field; Imperfect bonding; elastic foundation
 
Address
M. Saadatfar and M. Aghaie-Khafri: Faculty of Mechanical Engineering, K.N. Toosi University of Technology, Postal Code: 1999143344, Tehran, Iran
 

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